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What are the differences between tunneling and regulare encapsulation?

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1

What are the difference between tunneling (https://en.wikipedia.org/wiki/Tunneling_protocol) and regular encapsulation (e.g. TCP/UDP over IP, HTTP/SSH over TCP)?

Is TCP/UDP over IP considered tunneling?

Is HTTP/SSH over TCP considered tunneling?

Thanks.

protocol-theory tunnel

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edited 3 hours ago

Zac67

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asked 4 hours ago

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add a comment | 

1

What are the difference between tunneling (https://en.wikipedia.org/wiki/Tunneling_protocol) and regular encapsulation (e.g. TCP/UDP over IP, HTTP/SSH over TCP)?

Is TCP/UDP over IP considered tunneling?

Is HTTP/SSH over TCP considered tunneling?

Thanks.

protocol-theory tunnel

share|improve this question

edited 3 hours ago

Zac67

31.3k21961

asked 4 hours ago

TimTim

428416

add a comment | 

What are the difference between tunneling (https://en.wikipedia.org/wiki/Tunneling_protocol) and regular encapsulation (e.g. TCP/UDP over IP, HTTP/SSH over TCP)?

Is TCP/UDP over IP considered tunneling?

Is HTTP/SSH over TCP considered tunneling?

Thanks.

protocol-theory tunnel

share|improve this question

edited 3 hours ago

Zac67

31.3k21961

asked 4 hours ago

TimTim

428416

share|improve this question

edited 3 hours ago

Zac67

31.3k21961

asked 4 hours ago

TimTim

428416

share|improve this question

edited 3 hours ago

Zac67

31.3k21961

asked 4 hours ago

TimTim

428416

edited 3 hours ago

Zac67

31.3k21961

edited 3 hours ago

Zac67

31.3k21961

asked 4 hours ago

TimTim

428416

asked 4 hours ago

TimTim

428416

2 Answers
2

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2

Encapsulation is the normal method of using a lower layer mechanism for moving your data. E.g. HTTP is encapsulated by TCP, TCP is encapsulated by IPv4, IPv4 is encapsulated by an Ethernet frame.

Encapsulating backwards or at the same layer - IP in GRE, IP in IPsec, IP in UDP, Ethernet in L2TP, ... is called tunneling. It somewhat ties a knot in your layering model.

The most common use for tunneling is to allow you to pass packets/frames across a network that doesn't support the protocol or addressing scheme. You can tunnel private IP address packets across a public IP network, IPv4 over an IPv6 network or vice versa, Ethernet frames across a layer-3 connection, and so on.

share|improve this answer

answered 3 hours ago

Zac67Zac67

31.3k21961

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks. What does "It somewhat ties a knot in your layering model" mean?
  
  – Tim
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  He means that tunneling does not fit into the OSI or TCPIP model very well.
  
  – Ron Trunk
  55 mins ago
  

  
  
  
  

add a comment | 

1

For me tunnelling is when you have another level of routing and once you reach one destination of one of the layers the datagram progress to another destination, for example when you have two IP layers on the same datagram, and encapsulation is just put information over TCP/UDP, that basically is put information to be read on the destination. Probably other users have better responses and with more detail

share|improve this answer

answered 4 hours ago

camp0camp0

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2

Encapsulation is the normal method of using a lower layer mechanism for moving your data. E.g. HTTP is encapsulated by TCP, TCP is encapsulated by IPv4, IPv4 is encapsulated by an Ethernet frame.

Encapsulating backwards or at the same layer - IP in GRE, IP in IPsec, IP in UDP, Ethernet in L2TP, ... is called tunneling. It somewhat ties a knot in your layering model.

The most common use for tunneling is to allow you to pass packets/frames across a network that doesn't support the protocol or addressing scheme. You can tunnel private IP address packets across a public IP network, IPv4 over an IPv6 network or vice versa, Ethernet frames across a layer-3 connection, and so on.

share|improve this answer

answered 3 hours ago

Zac67Zac67

31.3k21961

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks. What does "It somewhat ties a knot in your layering model" mean?
  
  – Tim
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  He means that tunneling does not fit into the OSI or TCPIP model very well.
  
  – Ron Trunk
  55 mins ago
  

  
  
  
  

add a comment | 

2

Encapsulation is the normal method of using a lower layer mechanism for moving your data. E.g. HTTP is encapsulated by TCP, TCP is encapsulated by IPv4, IPv4 is encapsulated by an Ethernet frame.

Encapsulating backwards or at the same layer - IP in GRE, IP in IPsec, IP in UDP, Ethernet in L2TP, ... is called tunneling. It somewhat ties a knot in your layering model.

The most common use for tunneling is to allow you to pass packets/frames across a network that doesn't support the protocol or addressing scheme. You can tunnel private IP address packets across a public IP network, IPv4 over an IPv6 network or vice versa, Ethernet frames across a layer-3 connection, and so on.

share|improve this answer

answered 3 hours ago

Zac67Zac67

31.3k21961

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks. What does "It somewhat ties a knot in your layering model" mean?
  
  – Tim
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  He means that tunneling does not fit into the OSI or TCPIP model very well.
  
  – Ron Trunk
  55 mins ago
  

  
  
  
  

add a comment | 

Encapsulation is the normal method of using a lower layer mechanism for moving your data. E.g. HTTP is encapsulated by TCP, TCP is encapsulated by IPv4, IPv4 is encapsulated by an Ethernet frame.

Encapsulating backwards or at the same layer - IP in GRE, IP in IPsec, IP in UDP, Ethernet in L2TP, ... is called tunneling. It somewhat ties a knot in your layering model.

The most common use for tunneling is to allow you to pass packets/frames across a network that doesn't support the protocol or addressing scheme. You can tunnel private IP address packets across a public IP network, IPv4 over an IPv6 network or vice versa, Ethernet frames across a layer-3 connection, and so on.

share|improve this answer

answered 3 hours ago

Zac67Zac67

31.3k21961

share|improve this answer

answered 3 hours ago

Zac67Zac67

31.3k21961

answered 3 hours ago

Zac67Zac67

31.3k21961

answered 3 hours ago

Zac67Zac67

31.3k21961

1

For me tunnelling is when you have another level of routing and once you reach one destination of one of the layers the datagram progress to another destination, for example when you have two IP layers on the same datagram, and encapsulation is just put information over TCP/UDP, that basically is put information to be read on the destination. Probably other users have better responses and with more detail

share|improve this answer

answered 4 hours ago

camp0camp0

13111

add a comment | 

1

For me tunnelling is when you have another level of routing and once you reach one destination of one of the layers the datagram progress to another destination, for example when you have two IP layers on the same datagram, and encapsulation is just put information over TCP/UDP, that basically is put information to be read on the destination. Probably other users have better responses and with more detail

share|improve this answer

answered 4 hours ago

camp0camp0

13111

add a comment | 

For me tunnelling is when you have another level of routing and once you reach one destination of one of the layers the datagram progress to another destination, for example when you have two IP layers on the same datagram, and encapsulation is just put information over TCP/UDP, that basically is put information to be read on the destination. Probably other users have better responses and with more detail

share|improve this answer

answered 4 hours ago

camp0camp0

13111

share|improve this answer

answered 4 hours ago

camp0camp0

13111

answered 4 hours ago

camp0camp0

13111

answered 4 hours ago

camp0camp0

13111